Dark Angels army rules, detachment abilities, stratagems and lore for Warhammer 40k, with links to the full unit datasheet table.
The Dark Angels are considered amongst the most powerful and secretive of the Loyalist Space Marine Chapters. They were the I Legion of the original 20 Space Marine Legions to be created during the First Founding of the 30th Millennium.
Though they claim complete allegiance and service to the Emperor of Mankind, their actions and secret goals at times seem at odds with that professed loyalty, as the Dark Angels strive above all other things to atone for an ancient crime of betrayal committed over 10,000 standard years ago against the trust of the Emperor during the time of the Horus Heresy.
The Dark Angels stand first amongst the Space Marine Chapters, as they have done since their very inception as the I Legion. They are a proud Chapter, with traditions and rituals that date back to the earliest days of the Imperium of Man.
The origins of the Dark Angels remain shrouded in mystery. Few Imperial records of the Chapter's beginnings still exist, nor are there many mentions of the part it played in the Emperor's Great Crusade during the early 31 Millennium. Most references in the histories of the Imperium to its deeds during the accursed times of the Horus Heresy have actually been expunged.
Yet a legend persists that at one point the Dark Angels teetered on the very brink of heresy and that an act of the most terrible betrayal dishonoured all of the I Legion's feats of valour, leaving an enduring stain upon all of its Successor Chapters' honour.
Such is their shame that from that time onwards, the Dark Angels and their Unforgiven successors, of which there are more than 19 currently in Imperial service, strive for absolution from the sins of millennia past.
The Dark Angels' terrible secret is this: during the Horus Heresy, some of their brethren were turned to the side of Chaos. The Renegades were defeated in a battle that destroyed the Dark Angels' Legion homeworld, Caliban, but many of the Traitor Dark Angels survived to be cast through space and time by the direct intervention of the Chaos Gods.
These survivors are known to those few Dark Angels granted knowledge of their existence as the "Fallen Angels" or just "The Fallen." In the eyes of the Chapter's leaders, there is only one way that the Chapter can ever atone for its shame, restoring its honour and trust in the eyes of the Emperor -- all of the Fallen must be found and either made to repent their ancient sin, or slain.
This story of treachery and betrayal is the Dark Angels' hidden shame, and their secret mission to destroy all of the Fallen is now their only hope of salvation. No one knows of this other than the Dark Angels, their Successor Chapters and, perhaps, the Emperor Himself, interred within His Golden Throne.
The Chapter has been shaped by its dark past and is secretive and monastic in nature, with much time given over to worship and prayer. There are many different levels within the Chapter which individuals may gradually rise through. On attaining each new level, they are granted a little more knowledge of the truth behind the Dark Angels' origins, but only the highest-ranking members of the Chapter, the members of what is known as the "Inner Circle," know the terrible, shameful secret of what occurred 10,000 Terran years ago.
The Dark Angels hold more battle honours than almost any other Chapter; its only equals are its own successors. The Chapter has fought the length and breadth of the Imperium and beyond; against every foe that has ever beset Mankind. Dark Angels have held Ork WAAAGH!s at bay, crushed planetary uprisings, and saved entire star systems from the incursions of the Ruinous Powers.
The Dark Angels were the first of the Emperor's Space Marine Legions, and in their earliest incarnation fought as the personal army of the Master of Mankind in the dawning years of the Great Crusade and in the shadowed campaigns that had preceded it. As the prototype of what were to become the Legiones Astartes, they served in the final days of the Unification Wars and the early years of the Great Crusade both as the template for the more specialised Legions that were to come after them and a standard by which these successors would be measured. They were also among the best equipped of Imperial units, making use of large numbers of advanced archeotech and Plasma Weapons.
In this period, the Dark Angels were not even known as the Ist Legion as no others existed yet, for the Emperor simply referred to them as His "Angels of Death" or the "Six Hosts." These transhuman troops dominated the final days of the Wars of Unification, easily defeating all their Terran opponents and forcing those among the Tech-priests of Mars who had intervened in the conflict on Terra in the hope of delaying the Emperor's final victory to sue for peace.
From this point on, the Ist Legion ascended in power and the height of the Emperor's favour.
But once the most numerous and powerful of the Space Marine Legions, the Ist Legion's numbers would be depleted and its primacy ended by the middle years of the Great Crusade due to solar decades of savage warfare, particularly in the wars of the Rangdan Xenocides, one of the most apocalyptic campaigns of the Great Crusade.
The scars of these battles would change them, as would their reunification with their Primarch Lion El'Jonson and the introduction of fresh blood from his adopted homeworld of Caliban. A Death World dominated by a warlike, feudal society of techno-barbarians, Caliban's warrior orders provided fertile ground for the Legion's regeneration, and its martial codes and practices were extensively incorporated and adopted by the rebuilding Legion.
Stark and uncompromising, the Dark Angels were the first of the Emperor's Space Marine Legions and the truest to the mould from which the Legiones Astartes had been struck. They were killers of the purest and most refined kind, for whom there could be no other destiny but a lifetime of war and death in the name of the Imperium and Humanity. They did not build empires, made no attempt to master the ways of peace or the subtle skills of the artist, craftsman or diplomat. They offered no excuses for their nature and made no compromises in the pursuit of their assigned duty, shirking neither the price they paid in blood nor the price paid in infamy and solitude.
Their greatest battles are to be found in no catalogue of Imperial Compliance or roll of honour, no scholars or poets sing of these glories or remember those fallen in their prosecution, for they were fought against foes so monstrous that it was deemed necessary that all mention of them be erased from history. Such was the nature of their service, not only to be prosecutors of the Great Crusade, but also to serve as the Imperium's most potent bulwark against the unknown terrors that lurked in the dark between the stars.
The organisation and structure of the Dark Angels Legion predated the standard patterns of military organisation laid out by the Principia Bellicosa, indeed many of the doctrines and formations in common use throughout the Legiones Astartes found their origins in the early practises of the Ist Legion. In fact, this would seem to have been one of the prime missions gifted to the Ist Legion by the Emperor -- to discover, refine and perfect those strategies and patterns that would allow His new gene-crafted transhuman warriors to perform at peak efficiency.
When Imperial scholars speak of the "standard" form of a Space Marine Legion they speak of the Dark Angels, for it was in the sacrifice of the Ist Legion that these structures were first born. While Roboute Guilliman would later add to and adapt this structure, even that superlative general built upon the foundation that had been defined by the wars of the Ist Legion before the return of Lion El'Jonson. Even the Lion, upon resuming command of his Legion, would bow before the wisdom of these founders of the Ist Legion, content to bind this original structure to a single vision and authority, and it remained largely unchanged in form until the Second Founding.
In the earliest years of its existence, the Ist Legion would experiment with every form of war, every style of organisation and formation, with a host of warriors dedicated to almost any tactical or strategic ploy. This meant that the Legion contained specialists suited to every opponent and battlefield, but it lacked a cohesive structure to organise those warriors. It was by its very nature chaotic and fluid, ever-changing as certain tactics fell out of favour and new ones rose to prominence, and as such it lacked an easily defined sense of organisation.
This chaos was a necessary tool for its purpose, and in time it would resolve into order, into a system of supporting and overlapping formations that existed in parallel and allowed the Dark Angels to confront any foe on any battlefield and overcome them. This system of specialised formations stood at the very heart of the Ist Legion, and was the core around which it was built.
The Ist Legion's hierarchical unit structure was composed of a descending hierarchy of chapters, companies and squads as was any other, according to the dictates of the Principia Belicosa. This was the shape of its overt hierarchy, the uncloaked face it showed to its brother Space Marine Legions and the Imperium at large. Yet each of the warriors of the Legion also held a concurrent position in a second, covert layer of organisation, one they kept hidden from those not of the Legion.
This secret strata of organisation was composed primarily of two distinct bodies: the great hosts and the Orders of Battle or Hekatonystika. Both of these bodies served to allow the collection and codification of martial knowledge by the warriors of the Legion and to see that this knowledge was available on the battlefield when it was needed most by the generals of the Great Crusade.
The great hosts were the larger of the two covert organisations, numbering at first in the dozens, with each individual force claiming the loyalty of hundreds of individual warriors. The hosts were each dedicated to the perfection of one art of war, as some specialised in siege warfare, others in the art of skirmish and yet more in the brutal discipline of shock assault and many other tactics besides.
Following the tragic events of the Horus Heresy, the Dark Angels began acting suspiciously and growing more insular, which was noted by many watchful eyes. Having incorporated the structure of the original Order on Caliban into the Legion, the remaining Dark Angels took that knightly brotherhood a step further, becoming even more monastic in manner.
The Dark Angels sought to lay down the new rigours that would govern them in the wake of the terrible events that had led to the Fall of Caliban. At this time in the early 31st Millennium, entire new divisions of the Imperium, such as the Inquisition, were developed with the sole purpose of seeking out and destroying internal corruption related to the treachery of the Horus Heresy and the actions of Chaos on the Human-settled worlds of the Imperium.
Inspections following the destruction of Caliban judged the Dark Angels fit to continue as a Loyalist Legion. Some leeway for their new reclusive behaviour was granted due to the simultaneous loss of the Legion's primarch and homeworld, but largely it was allowed because of the Dark Angels' ongoing and relentless heroics against the Imperium's foes during the travails of the Great Scouring.
Regardless of these allowances, the Dark Angels remained closely monitored by the Imperial authorities and particularly by the nascent Inquisition. After the disappearance of their primarch, it did not seem that strange for the remaining Dark Angels to withdraw further into their own brotherhood. If before they had been described as reserved, now they were, at best, taciturn: at worst, they were cold and austere.
Behaviour that once would have been described as pensive was now more like a brooding silence. Yet there was one thing that had not changed -- their campaigns continued to be well-planned and effective actions. If the Dark Angels were in some strange mourning, it in no way dampened their ability to bring battle to the enemies of the Imperium and of Mankind.
Many changes happened within the Imperium during those dark days. Although Horus had been defeated at the Siege of Terra and his remaining Traitor Legions driven into the Eye of Terror, the High Lords of Terra and the remaining Loyalist primarchs still dreaded the resurgence of Chaos. They had all recoiled in horror at the full realisation of how insidious the betrayal had been, how far across the galaxy the roots of corruption had spread. Never again could the Imperium be subjected to such widespread rebellion; drastic measures had to be undertaken.
To avoid the threat of the Space Marine Legions falling under the influence of the Archenemy, the remaining Legions were sub-divided into a number of smaller Chapters. Under the new structure of this so-called Second Founding, each Chapter's size was limited to a thousand warriors. The organisation, tactics and roles of these new "Chapters" -- a word derived from the former primary sub-divison of a full Legion under the strictures of the Principia Belicosa -- were defined in a hugely influential work known as the Codex Astartes.
Roboute Guilliman, the primarch of the Ultramarines who had become the Lord Commander of the Imperium and the Imperial Regent in the wake of Malcador the Sigillite's death and the Emperor's internment in the Golden Throne, almost single-handedly undertook the work of preparing the Codex Astartes. The proscriptions within its pages not only lessened the risks of a single Traitor altering the course of the Imperium, but also allowed the limited number of Loyalist Space Marines remaining to be more flexible -- spreading more widely across the galaxy to confront Mankind's many enemies.
As the Dark Angels have no homeworld to speak of (since the destruction of Caliban), they draw their recruits from a variety of different Imperial planets, mainly those Feudal Worlds with a pre-industrial level of technology like that of Caliban before the coming of the Emperor. Representatives of the Dark Angels visit each recruiting world once within a normal Human's lifetime, and take the strongest juveniles from the population.
Each Aspirant is thoroughly screened, and from the moment he is accepted into the Chapter as a Neophyte Space Marine, his past becomes irrelevant. Once the recruit is accepted he will undergo the normal rites to become a Space Marine. However, should he fail, his mind will be wiped clean and his body converted into that of a Servitor, the mindless cybernetic automatons that carry out the laborious tasks of the Chapter.
The Dark Angels make use of less Chapter serfs or bondsmen than other Chapters of the Adeptus Astartes. They prefer the use of Servitors for most Chapter labour, as they fear that Human serfs could be compromised to reveal all of the Chapter's secrets.
Lore excerpt from Warhammer 40k Wiki on Fandom, available under CC BY-SA 3.0.